CN112283238A - Novel super-long aluminum alloy transmission shaft - Google Patents
Novel super-long aluminum alloy transmission shaft Download PDFInfo
- Publication number
- CN112283238A CN112283238A CN202011004259.5A CN202011004259A CN112283238A CN 112283238 A CN112283238 A CN 112283238A CN 202011004259 A CN202011004259 A CN 202011004259A CN 112283238 A CN112283238 A CN 112283238A
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- Prior art keywords
- aluminum alloy
- transmission shaft
- shaft
- long
- universal joint
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a novel ultra-long aluminum alloy transmission shaft which comprises an aluminum alloy shaft tube, wherein an aluminum alloy spline housing and an aluminum alloy universal joint fork are respectively welded at two ends of the aluminum alloy shaft tube; the aluminum alloy central siphon is the wave reducing structure, the wave reducing structure specifically is from the centre to both ends pipe diameter taper and then the pipe diameter grow gradually and diminish again gradually. The invention can effectively improve the rigidity and the critical rotating speed of the ultra-long aluminum alloy transmission shaft, simultaneously meets the requirement on light weight of the aluminum alloy transmission shaft assembly, and can also reduce the rotation diameter and the installation space of the ultra-long aluminum alloy transmission shaft, so that the whole ultra-long aluminum alloy transmission shaft is more attractive and compact.
Description
Technical Field
The invention belongs to the technical field of production design of transmission shafts in automobile parts, and particularly relates to a novel ultra-long aluminum alloy transmission shaft.
Background
As a light-weight product of an automobile, the aluminum alloy transmission shaft can effectively replace a steel transmission shaft (one aluminum alloy transmission shaft replaces one or more steel transmission shafts), not only can the weight of the whole automobile be reduced, but also the assembly efficiency of the whole automobile can be improved, and the NVH performance of the whole automobile can be improved. For example, application numbers are: CN201711155173.0 discloses a novel aluminum alloy transmission shaft, and the one end of aluminum alloy central siphon is equipped with the aluminum alloy universal joint fork among the technical scheme, and the other end is equipped with the aluminum alloy spline housing, forms the integral type structure for whole transmission shaft weight reduction.
However, when the wheelbase of the whole vehicle is longer, a longer aluminum alloy transmission shaft is needed, the critical rotating speed can be reduced along with the increase of the length, resonance can be generated when the transmission shaft rotates at a high speed to work, so that the transmission shaft and the whole vehicle are seriously damaged, the outer diameter of a shaft tube of the transmission shaft needs to be increased for solving the problem, but when the outer diameter is too large, the volume of a part connected with the shaft tube is increased along with the increase of the outer diameter, so that the chassis of the whole vehicle does not have enough installation space, and meanwhile, the problems of weight increase and unattractive appearance. Aiming at the technical problems, the invention provides a novel ultra-long aluminum alloy transmission shaft.
Disclosure of Invention
In order to overcome the technical problems in the prior art, the invention provides a novel ultra-long aluminum alloy transmission shaft, which can effectively improve the rigidity and the critical rotation speed of the aluminum alloy transmission shaft, simultaneously reduce the weight of the ultra-long aluminum alloy transmission shaft, and also reduce the rotation diameter and the installation space of the ultra-long aluminum alloy transmission shaft.
In order to achieve the purpose, the invention provides the following technical scheme:
a novel ultra-long aluminum alloy transmission shaft comprises an aluminum alloy shaft tube, wherein an aluminum alloy spline sleeve and an aluminum alloy universal joint fork are welded at two ends of the aluminum alloy shaft tube respectively, a spline shaft fork is installed at one end, away from the aluminum alloy shaft tube, of the aluminum alloy spline sleeve, the spline shaft fork is fixedly connected with a first flange fork through a first cross shaft, and one end, away from the aluminum alloy shaft tube, of the aluminum alloy universal joint fork is fixedly connected with a second flange fork through a second cross shaft; the aluminum alloy central siphon is the wave reducing structure, the wave reducing structure specifically is from the centre to both ends pipe diameter taper and then the pipe diameter grow gradually and diminish again gradually.
Preferably, the two ends of the wave-shaped reducing structure are the thinnest parts of the pipe diameter, and the thinnest parts of the pipe diameter at the two ends of the aluminum alloy shaft pipe are respectively welded with the aluminum alloy spline sleeve and the aluminum alloy universal joint fork.
Preferably, the center lines of the aluminum alloy shaft tube, the aluminum alloy spline housing and the aluminum alloy universal joint yoke are always on the same straight line.
As the optimization of the embodiment of the invention, the pipe diameter of the thickest section of the wave-shaped reducing structure is 1.2-1.5 times of that of the thinnest section.
Preferably, the two ends of the aluminum alloy shaft tube are respectively welded with the aluminum alloy spline sleeve and the aluminum alloy universal joint yoke by friction welding.
Preferably, the aluminum alloy shaft tube is of a hollow structure as a whole.
The invention has the following beneficial effects:
(1) the novel ultra-long aluminum alloy transmission shaft can effectively improve the rigidity and the critical rotating speed of the ultra-long aluminum alloy transmission shaft, simultaneously meets the requirement on light weight of an aluminum alloy transmission shaft assembly (reduces the weight of the ultra-long aluminum alloy transmission shaft), and can also reduce the rotation diameter and the installation space of the ultra-long aluminum alloy transmission shaft, so that the whole ultra-long aluminum alloy transmission shaft is more attractive and compact.
(2) On the premise of meeting the layout space of the whole vehicle, the novel ultra-long aluminum alloy transmission shaft further increases the design length of the aluminum alloy transmission shaft, so that the maximum length of the aluminum alloy transmission shaft can reach more than 3500mm, 1 aluminum alloy transmission shaft can replace 2 (or more) steel transmission shafts, and the light weight effect is better than the original effect.
(3) The novel ultra-long aluminum alloy transmission shaft can realize standardization, serialization and universalization of ultra-long aluminum alloy transmission shaft parts.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the novel ultra-long aluminum alloy transmission shaft of the invention.
The reference numbers shown in the figures are as follows: 1. an aluminum alloy shaft tube; 2. an aluminum alloy spline housing; 3. an aluminum alloy universal joint yoke; 4. a spline shaft yoke; 5. a first cross-shaft; 6. a first flange yoke; 7. a second cross-shaped shaft; 8. a second nosing tine.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "both ends", "middle part", "inside", "top end", "bottom end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, the embodiment of the invention provides a novel ultra-long aluminum alloy transmission shaft, which specifically comprises an aluminum alloy shaft tube 1 in a hollow structure, wherein an aluminum alloy spline housing 2 and an aluminum alloy universal joint yoke 3 are fixedly connected to two ends of the aluminum alloy shaft tube 1 respectively. In the embodiment, the aluminum alloy shaft tube 1, the aluminum alloy spline housing 2 and the aluminum alloy universal joint yoke 3 are made of 6061T6 or other 6-series aluminum alloy T6 state materials, and other parts and components are made of the existing materials. In this embodiment, aluminium alloy spline housing 2 keeps away from the one end of aluminium alloy central siphon 1 and installs spline shaft yoke 4, spline shaft yoke 4 is through first cross 5 and first flange fork 6 fixed connection, and aluminium alloy universal joint fork 3 keeps away from the one end of aluminium alloy central siphon 1 and passes through second cross 7 and 8 fixed connection of second flange fork.
Referring to fig. 1, the structural feature of the present invention is that the aluminum alloy shaft tube 1 is a wave-shaped reducing structure, and the wave-shaped reducing structure is specifically that the tube diameter gradually decreases from the middle to both ends, then gradually increases and then gradually decreases. In this embodiment, the aluminum alloy central siphon 1 realizes at least two or more wave reducing (that is, at least two or more wave crests-wave troughs-wave crests-wave troughs … … appear), further optimizes this embodiment, and the positive middle position of aluminum alloy central siphon 1 is the thickest section of pipe diameter (the position that is in the wave crest), and the both ends of wave reducing structure are the thinnest department of pipe diameter (the position that is in the wave trough), and the thinnest department of pipe diameter at the both ends of aluminum alloy central siphon 1 welds together with aluminum alloy spline housing 2 and aluminum alloy universal joint fork 3 respectively. When the wheel base of the whole vehicle is long, the critical rotating speed of the ultra-long aluminum alloy transmission shaft cannot be reduced along with the increase of the length through the wavy variable diameter structure, and the ultra-long aluminum alloy transmission shaft cannot generate resonance, and has rigidity and critical rotating speed when rotating at high speed. Through the thinnest department of the pipe diameter at 1 both ends in aluminum alloy central siphon respectively with the welding of aluminum alloy spline housing 2 and aluminum alloy universal joint fork 3 together for the external diameter of aluminum alloy central siphon further reduces, both satisfied the requirement to aluminum alloy transmission shaft assembly lightweight, make simultaneously that the part welding tang such as spline housing and universal joint fork be connected with the aluminum alloy central siphon all reduce on original basis, further reduction aluminum alloy transmission shaft cost, customer high quality requirement has been satisfied.
Further optimize this embodiment, the central line of aluminum alloy central siphon 1, aluminum alloy spline housing 2 and aluminum alloy universal joint fork 3 is on same straight line all the time. Like this, guaranteed that the rigidity of overlength aluminum alloy transmission shaft when high rotation is more stable, the thickest section pipe diameter of wave reducing structure is 1.2-1.5 times of thinnest section pipe diameter (in this embodiment, preferred thickest section pipe diameter is 1.2 times of thinnest section pipe diameter), under the prerequisite that satisfies whole car arrangement space, make the maximum length of aluminum alloy transmission shaft can reach more than 3500mm, can realize that 1 aluminum alloy transmission shaft replaces 2 (many) steel transmission shafts, the lightweight is better than original effect.
In this embodiment, 1 both ends of aluminum alloy central siphon all adopt the friction weld welding to form with aluminum alloy spline housing 2 and aluminum alloy universal joint fork 3 respectively, the pipe diameter at 1 both ends of aluminum alloy central siphon is in the same place with aluminum alloy spline housing 2 and 3 welding of aluminum alloy universal joint fork respectively in the finest department, compare to reduce to some extent with current equal footpath aluminum alloy transmission shaft pipe diameter, so aluminum alloy spline housing 2 and 3 welding seam allowance of aluminum alloy universal joint fork all reduce on original basis, make holistic reducing aluminum alloy transmission shaft further subtract heavy, both satisfied the whole cost of aluminum alloy transmission shaft assembly lightweight requirement and reduced simultaneously.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A novel ultra-long aluminum alloy transmission shaft comprises an aluminum alloy shaft tube (1), wherein an aluminum alloy spline sleeve (2) and an aluminum alloy universal joint fork (3) are welded at two ends of the aluminum alloy shaft tube (1) respectively, a spline shaft fork (4) is installed at one end, far away from the aluminum alloy shaft tube (1), of the aluminum alloy spline sleeve (2), the spline shaft fork (4) is fixedly connected with a first flange fork (6) through a first cross shaft (5), and one end, far away from the aluminum alloy shaft tube (1), of the aluminum alloy universal joint fork (3) is fixedly connected with a second flange fork (8) through a second cross shaft (7); the method is characterized in that: the aluminum alloy central siphon (1) is of a wave-shaped reducing structure, and the wave-shaped reducing structure is specifically that the pipe diameter gradually decreases from the middle to two ends, then the pipe diameter gradually increases and then gradually decreases.
2. The novel ultra-long aluminum alloy transmission shaft according to claim 1, characterized in that: the two ends of the wave-shaped reducing structure are the thinnest parts of the pipe diameter, and the thinnest parts of the pipe diameter at the two ends of the aluminum alloy shaft pipe (1) are welded with the aluminum alloy spline sleeve (2) and the aluminum alloy universal joint fork (3) respectively.
3. A novel ultra-long aluminum alloy transmission shaft according to claim 1 or 2, characterized in that: the central lines of the aluminum alloy shaft tube (1), the aluminum alloy spline housing (2) and the aluminum alloy universal joint fork (3) are always on the same straight line.
4. The novel ultra-long aluminum alloy transmission shaft according to claim 1, characterized in that: the diameter of the thickest section of the wave-shaped reducing structure is 1.2-1.5 times of that of the thinnest section.
5. The novel ultra-long aluminum alloy transmission shaft according to claim 1, characterized in that: the aluminum alloy shaft tube is characterized in that two ends of the aluminum alloy shaft tube (1) are respectively welded with the aluminum alloy spline housing (2) and the aluminum alloy universal joint fork (3) by friction welding.
6. The novel ultra-long aluminum alloy transmission shaft according to claim 1, characterized in that: the aluminum alloy shaft tube (1) is integrally of a hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011004259.5A CN112283238A (en) | 2020-09-22 | 2020-09-22 | Novel super-long aluminum alloy transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011004259.5A CN112283238A (en) | 2020-09-22 | 2020-09-22 | Novel super-long aluminum alloy transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112283238A true CN112283238A (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011004259.5A Pending CN112283238A (en) | 2020-09-22 | 2020-09-22 | Novel super-long aluminum alloy transmission shaft |
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| CN (1) | CN112283238A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944683A (en) * | 2021-10-20 | 2022-01-18 | 东风汽车底盘系统有限公司 | Carbon fiber variable cross-section shaft tube transmission shaft |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1189333A (en) * | 1981-11-05 | 1985-06-25 | Alexander H. Galaniuk | Variable diameter driveshaft |
| US20030236124A1 (en) * | 2002-06-24 | 2003-12-25 | Gkn Automotive, Inc. | Rotary shaft |
| CN200977940Y (en) * | 2006-11-27 | 2007-11-21 | 董晓滨 | Automobile direction machine transmission shaft vibration damping device |
| JP2008256203A (en) * | 2007-03-09 | 2008-10-23 | Ntn Corp | Power transmission shaft |
| CN203868239U (en) * | 2014-06-12 | 2014-10-08 | 浙江欧迪恩传动科技股份有限公司 | HSR (high speed ratio) high-strength constant-speed drive shaft |
| CN205689734U (en) * | 2016-06-14 | 2016-11-16 | 中国第一汽车股份有限公司 | A kind of major diameter transmission shaft structure simplifying vehicle transmission shaft system arrangement |
| CN207648006U (en) * | 2017-11-20 | 2018-07-24 | 东风汽车传动轴有限公司 | A kind of friction welding (FW) aluminium driving shaft |
| CN109322900A (en) * | 2018-09-28 | 2019-02-12 | 雷中坤 | A kind of light-duty high-performance hole-bored axle from end to end and application method and product |
| CN210423393U (en) * | 2019-09-02 | 2020-04-28 | 温州神一轴业股份有限公司 | Novel micro-shaft with knurls |
-
2020
- 2020-09-22 CN CN202011004259.5A patent/CN112283238A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1189333A (en) * | 1981-11-05 | 1985-06-25 | Alexander H. Galaniuk | Variable diameter driveshaft |
| US20030236124A1 (en) * | 2002-06-24 | 2003-12-25 | Gkn Automotive, Inc. | Rotary shaft |
| CN200977940Y (en) * | 2006-11-27 | 2007-11-21 | 董晓滨 | Automobile direction machine transmission shaft vibration damping device |
| JP2008256203A (en) * | 2007-03-09 | 2008-10-23 | Ntn Corp | Power transmission shaft |
| CN203868239U (en) * | 2014-06-12 | 2014-10-08 | 浙江欧迪恩传动科技股份有限公司 | HSR (high speed ratio) high-strength constant-speed drive shaft |
| CN205689734U (en) * | 2016-06-14 | 2016-11-16 | 中国第一汽车股份有限公司 | A kind of major diameter transmission shaft structure simplifying vehicle transmission shaft system arrangement |
| CN207648006U (en) * | 2017-11-20 | 2018-07-24 | 东风汽车传动轴有限公司 | A kind of friction welding (FW) aluminium driving shaft |
| CN109322900A (en) * | 2018-09-28 | 2019-02-12 | 雷中坤 | A kind of light-duty high-performance hole-bored axle from end to end and application method and product |
| CN210423393U (en) * | 2019-09-02 | 2020-04-28 | 温州神一轴业股份有限公司 | Novel micro-shaft with knurls |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944683A (en) * | 2021-10-20 | 2022-01-18 | 东风汽车底盘系统有限公司 | Carbon fiber variable cross-section shaft tube transmission shaft |
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Application publication date: 20210129 |
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| RJ01 | Rejection of invention patent application after publication |